Galen deri img- machine



(No Model.)

R. BUTTERWORTH. GALENDERING MACHINE.

Patented Apr. 22, 1890.

UNiTEn STATES PATENT OFFICE.

ROBERT BUTTERWORTH, OF SOMERVILLE, ASSIGNOR OF ONE-HALF TO THE REVERSIBLE COLLAR- COMIANY, OF BOSTON, MASSACHUSETTS.

CALSENDERINGI-MACHINE.

SPECIFICATION forming part of Letters Patent No. 425,978, dated April 22, 1890.

Application filed October 11, 1889. Serial No. 326,659. (No model.)

To all whom it may concern:

Be it known that 1, ROBERT BUTTERWORTH, of Somerville, in the county of Hiddlesex, State of Massachusetts, have invented certain new and useful Improvements in CalenderingMachines, of which the following is a description sufficient-l y full, clear, and exact to enable any person skilled in the art or science to which said invention appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is an end elevation of a calenderingunachine provided with my improvement. Fig. 2 is an elevation of one of the roller-journal boxes removed; and Fig. 3, a detail view showing one of the connectingrods.

Like letters of reference indicate corresponding parts in the different figures of the drawings.

In machines of this character as ordinarily constructed the calendering-rolls are arranged vertically above each other, alternate rolls in the series being made from paper, cotton, or similar material. These rolls frequently become indented from bunches or similar imperfections in the paper as it passes between them, rendering it necessary to wet or soak them and revolve them rapidly against each other until their surfaces become smooth and dry. As the rolls are journaled in independent boxes fitted to slide vertically above each other in the machine-frame, the bodies thereof bear heavily against each other, and if allowed to remain stationary before they are thoroughly dried, or if left for any consider able time in engagement with each other even when dry, they frequently become irregular or misshapen.

My invention is designed to overcome these and other objections, and in carrying it outI make use of means which will be readily understood by all conversant with such matters from the following explanation:

In the drawings, A represents the frame of the machine, which is of the ordinary construction, comprising two parallel standards provided centrally with a vertical slot or openin g b, in which the journal-boxes B of the rolls cl f are fitted to slide. The rolls d are formed of cotton, paper, or similar material, as described, and the alternate rolls f are constructed entirely of metal in the usual manner. A vertical shaft 9 is fitted to rotate in brackets h on the frame and bears the pinion 2' at its upper end and a beveled gear j at its lower end, meshing with a similar gear 7; on a stubshaft Z, driven byahand-wheel m. A ver tical screw 1;; is secured to the upper roll-journal box B and passes through thetop of the standard A. Vorking on said screw there is a large gear D, which meshes with the pinion i, the purpose of the mechanism described being to elevate the upper roll f by raising its journal-boxes. These boxes B (see Fig. 2) have vertical grooves 9' in their sides to receive the edges of the slot 1) and a central journal-opening t.

In my improvement I form lugs or ears 2; on the boxes above and below the opening t. A link or connecting-rod C is secured in each set of lugs by abolt a", passing through an elongated slot in said link. The succeeding boxes in the series are connected in like manner by. links G.

hen the rolls are left in a moistened condition, as specified, or when the machine is stopped-and it is desired to separate the rolls, the hand-wheel m is actuated to operate the screw 1). This elevates the boxes of the upper roll, as f, and carries with them the boxes of the succeeding rolls, connected therewith by the links 0, until said rolls are all suspended and out of contact with each other.

The links C and their slots are constructed of such length that they will not interfere with the proper engagement of the calendering-rolls when lowered by the screw.

Having thus explained my invention, what I claim is- 1. In a calendering-machine, a series of calendering-rolls having the journal of each roll connected with those of the adjacent roll, in combination with mechanism for moving an outer roll of the series, whereby said rolls may be suspended out of contact with each other, substantially as described.

2. In a calendering machine, a series of calcndering-rolls having their journal-boxes con nected by links or slotted rods, in combination With mechanism for moving the boxes of an outer roll, substantially as an for the purpose set forth.

3. In a calendering-machine, the combination of a frame, a series of calendering-rolls having journal-boxes fitted to slide vertically in said frame, links connecting said boxes, and a screw for elevating said rolls out of contact with each other, substantially as described.

4:. In a calendering-machine, the ro1ljour nal boxes 5, provided with lugs w, and slotted connecting-rods O, secured therein, in combination with mechanism, substantially as described, for elevating the boxes of the upper roll.

5. In a calendering-machine, the frame A and rolls d f, provided with sliding journalboxes B, in combination with the links 0, connecting said boxes, and mechanism, substantially as described, for elevating them out of contact with each other.

ROBERT BUTTERVVORTH.

Witnesses:

O. M. SHAW, K. DURFEE, 

